Plate-ice making and harvesting apparatus.



D. J. HAVENSTRITB. PLATE IGP MAKING AND HARVPSTING APPARATUS.

APPLICATION FILED SEPT,14, 1908.

Patented Oct. 12, 1909.

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5 vw@ who@ a WWP/? VC z fm D. J. HAVENSTRITE. PLATE IUE MAKING AND HARVESTING APPARATUS. APPLIOATION FILED sEPT.14, 1908.

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UNITED srnrns rATEN'r caricia.

DAVID J. HAVENSTRI'IE, OF NEWARK, NEW JERSEY.

PLATE-ICE MAKING AND HARVESTING APPRATUS.

Specification of Letters Patent.

Patented oet. ia, isos.

Application led September 14, 1908. Serial. No. 452,859.

and means for conveying said refrigerant to said plate: the said means being con'- structed to permit of removal of said plate from said tank without separation of said means and said plate.

In U. S.

described an apparatus for making plate ice,

Awhich embodies a header disposed above and from` the header, said Yheader with the tubes vlio and adherent ice cake is lifted from the tank. Pipes conveying warm liquid are, then connected to the header, and by the circulation of said warm liquid through the tubes, the ice cake is thawed olf. Y v

In the apparatus herein shcwnas 'one .em-

bodiment of my present invention, theice cakes are produced in like manner upon freezing tubes, but the construction is such that the freezing plate formed by said tubes may be removed from the tank without disconnecting from the supporting header, the pipe connections which supply either the refrigerating fluid or the warm liuid for thawing olf, at will. The said construction is es-y pecially suited to the employment of a volatile refrigerant inthe freezing plate, since it prevents the loss of such refrigerant and the escape of injurious fumes which would follow if thc inlet and outlet pipes were dis- ,indicate like reissued Letters Patent No. '12,808, granted to me Junev 9, 1908I have the freezing tubes 27 disposed connected from the header in order toper mit of removal of the platei 4In the laccompanying drawings- Figure l is a plan view of the apparatus. Fig. 2 is and the adjacent refrigerating chamber, each partly in vertical section.

Similarl numbers and letters of reference parts.

1 isa containing vessel divided by a transverse partition 2 into two non-communicatingcompartments, one of which, 3, is .the tankin'which is placed the 'water to be 'frozen and the other, 4:, is a refrigerated 'a side elevation, showing the freezing tank chamber in which the ice cakes are received 4 during the thawing olf operation, and .in

which the may be kept foiI a certain time for annea ing purposes. 1'

5, 6, 7, 8 are transverse headers forming a group, each header being connected at its -ends rt-o the longitudinal headers 9, 10, on

opposite sides of the tank.- The longitudinal header l() is not shown in Frg. l, being removed forfclearer exhibition of the parts associated therewith. The headers 5, 6, 7, 8

are received in notches 11 in the side walls of the tank, and near their ends are provided with valves 12.

' V Secured tothe floor on opposite vsides of freezing tank 3, are standards 13 and 14.

The standard 13 carries a'sleeve 15 which, by means of a swinging joint 16,l is connected tothe end of a tubular arm 17. The arm 17 at-it's other extremity is connected by a swinging joint 18 to the end of another tubular arm 19, and the other extremity of said'arm 19 is connected by a swinging joint 20 to the header 10. The standard 14 in like manner carries a sleeve 21 connected ,by swinging joint 22 to tubular arm 23, said arm being connected by swinging joint 24 to tubular arm 25 and arm 25 being connected by swinging joint 29 to header 9.

- The arms 17 and 23 and the arms 19 and 25 are alike in dimensions.'

Depending from the headers 5 6, 7, 8, are vertically and parallel and constructed to permit acirculation of vliquid through them, substan tially as described in my aforesaid reissued Letters Patent. Each group of parallel tubes 27 forms a freezing plate upon which a cake 32 of ice is formed. The headers 5, 6, 7, 8, are also connected together by longitudinal'.

stay pieces 28, so that said headers, with said stay pieces and longitudinal headers i form a frame, and this frame with the depending tubes 27 may be lifted as a unit out of the tank by any suitable means, such as the traveling crane illustrated in my said reissued Letters Patent, and so transported to and from the refrigerating chamber 4. This removal and transfer of the aforesaid parts is permitted by the swinging joints connecting the tubular arms to one another and to the longitudinal headers and vstandard sleeves, as shown by dotted lines in Fig. 2, without requiring any separation of said arms from the freezing plates and wit-hout interrupting the continuity of the ducts or conduits formed by said arms between the standard sleeves and the headers.

The swinging joints may be of any suitable construction to. permit 'the aforesaid movement of the arms, and they will preferably be provided with any suitable tightening means, such as flanges connected by take up'bolts. v

The refrigerating chamber 4 is provided with notches 29 in its walls to receive thelieaders 5, 6,7, `8, and on its bottom may -liave supporting bars 30 provided with conacross the chamber are pipe coils 33 disposed between said concavities, the ends of said coils extending through the longitudinal walls of said chamber and being connected to outside longitudinal pipes 34, 35. The devices for forcing volatile refrigerating medium to and vthrough the apparatus are constructed as follows: A is a tank to which the medium is delivered from any suitable source by the pipe B containing an expansion valve C, until a sufficient quantity of said medium is accumulated in liquid form. This liquid is then forced by means of a pump D, through the pipe E to the sleeve 15 on standard 13 and thence by the tubular arms 17, 19, to header 10, and through headers 5, 6, 7, 8 and tubes 27 to headerr9, thence by tubular arms 23, 2 5 to sleeve 21 on standard 14, and thence by pipe F back to tank A. The gas then goes back -to the generator (compression machine) by ery, is free from the .inner surfaces of the tank. lVhen the cakes have attained the desired thickness, they are lifted out of the tank 3, in the manner already described, and as shown in dotted lines, Fig. 2, and are deposited in the chamber 4.' This chamber Ais This cuts off the supply of refrigerating me-l dium to both the freezing tank 8 and chamber4. i i

L is a tank in which is stored warm fluid,

such as liquid anhydrous ammonia under the condenser pressure and, therefore, warm orv above freezing temperature. A pump M communicates with .this tank by pipe N in which is a valve O, and with pipe E by pipe P in which is valve Q. The tank also communicates with pipe F by pipe R in which is valve S. The tank L and pumpM are, therefore, in a by--pass formed by the pipes P, N, R, so that'when the valves H, I, J, K, are shut and the valves O, Q,l SLare opened, said' pump forces the warmv fluid through the headers and tubes. This frees the ice cakes now in chamber 4 from the tubes, so that the tubes and headers may be lifted from the cakes and replaced in the freezing tank. The connections with tank L being closed and those with tank A reopened, a new ice cake is formed on the tubes as before.

At the top of tank A may be provided a safety spring valve located at T and connected to the ammonia' condenser (not shown) vto prevent undue pressure in said a removable freezing plate, exible connections secured to and communicating with said plate, a source of fluid refrigerant, a source of warm fluid, and means for divert- .ing at will saidrefrigerant or said fluid into said flexible connections. l

2. In anice making and harvesting apparatus, a tank for containing water to be frozen, 1 15 a removable freezing plate, a receptacle A forsaid plate; in proximity to said tank, flexible connections secured to and communieating with. said plate and constructed to permit the transfer of said plate from said '120 3. In an ice making and harvesting appa- L25.

ratus, a tank for containing water to be 'frozen,a removable freezing plate, standards on opposite sides of said tank, flexible pipe connections secured to said plate and said standards, a source of fluid refrigerant, and

lpipe connections between said source and said flexible connections for conveying said refrigerant.

, i'atus, a tank for containing water to be frozen,7

a removable freezin plate, a source of volatile refrigerant, pipe connections secured to said plate and conveying said refrigerant, a source of warm liquid, pipe connections secured to said plate and conveying said refrigerant and said liquid, a pump for forc-v ing said refrigerant through said connections and plate, a pum for forcing said warm liquid through s aid connections'and plate,and means for establishing at will circulation in said plate of either said refrigerant or said warm liquid. i

6. In an ice making and harvesting apparatus, a tank for containing water to be frozen,

`a removable freezing plate, a source of volatile refrigerant, pipe connections secured to said plate and conveying said refrigerant, a by-pass outside of said plate and across said pipe connections, a source of warmliquid in said by-pass andnieans for permitting either said refrigerant or said warm liquid to circulate through said pipe connections and freezing late.

7. In an -ice making and harvesting apparatus, a tank for containin water 'to be frozen, a header,a multiplicity of freezing tubes communicating with said header and depending therefrom,'the said header with said tubes being removable from 'said' tank, a

Asource of liquid refrigerant, flexible pipes connected to said header and constructed to permit the removal of said header from said tank without separation of said pipes and header, and means for conveying refrigerant between said source and said pipes.'

8. In an ice making and harvesting apparatus, a tank for containing water to be frozen, a receiving chamber in proximity thereto, means for refrigerating said chamber, a header, a multiplicity of depending tubes communicating therewith and depending therefrom, a source of refrigerating fluid, a

source of warm fluid, flexible pipe connections secured to said header, and means for diverting either said refrigerating fluid or said warm Huid into said flexible connections:

the said connections being constructed to permit the removal of said header and tubes from said tank to said chamber withoutfseparation of said connections and said header.

In testimony whereof I have aixed by signature in presence of two witnesses. DAVID J.` HAVENSTRITE. Witnesses:

GERTRUDE T. PORTER, MAY T. MCGARRY. 

